Section or warper beam



Feb. 21, 1939. R. U. THORNTON 2,148,394

l sEcTmN 0R WARPER BEAM Filed-July 12, 1932 2 Sheets-ShemL 2 H ATTQRNMMPatented web. itl, mit

Unirse STATES;

'PATENT OFFICE:

The present invention which relates to section or lWarper beams is animprovement" on Letters Patent Nos. 1,239,744, September 11, 1917, and1,470,946, October 16, 1923 to Ray Thornton. 5./ Herctofore it has beencustomary to secure the heads of such beams vto the barrel portionthereof l by means of nuts threaded to the shaft and taking against theheads; but experience has shown that such nuts are frequently loosenedespecially when l. there is a sudden stoppage or change in the speed ofthe beam, the heads of which rotate at high peripheral f/speed, suchspeed sometimes exceeding one'hundred miles an hour. By means of thepresent invention I am enabled'to eliminate the use of the nutsaforesaid by securing the heads directly to the barrel, the barreldirectly to discs mounted on the shaftfand said discs to said shaft bymeans of flanged collars or thel like. j"

It has been found in practice that the heads, unless made excessivelythick sometimes spread when the beam is lfilled with yarn. By thepresent invention I eliminate this defect by providing .l stiffenerswhich may takethe form of lconvex discs preferably of resilientmaterial, each disc gg having threaded engagement with the shaft andeach being disposed with the outer periphery of its concave face inengagementwlth the cuterl face of one of the heads so that by screwingthe, disc along the shaft the stiffness will be forced against theirrespective heads and thereby prevent the longitudinal distance betweenthe outer periphery of said heads becoming greater than the length ofthe barrel when yarn iswound l on the beam. It is essential for thispurpose that the diameter of eachstiffener be yf'substantially greaterthan that of the barrel.

Preferably the means of securingthe heads to the stave's which make upthe barrel consist of longitudinal rods passing throughsaid staves and.1o-heads together with nuts which give the samev the necessary tension.I have found it desirable to place said rods in grooves which preferablyare t in one of the side faces of several of thel taves and the lattermay be connected together by tongue-and-groove` construction. An'illustrative embodiment of my invention is shown in the accompanyingdrawings in which- Figure 1 is a fragmentary longitudinal section of abeam embodying my invention; J Fig. 2 is a transverse section taken onthe line 2 2 of Fig. l;

Fig. 3 is a fragmentary longitudinal section showing a modification.

In the particular drawings selected for more' fully disclosing theprinciple of my invention,

s comme (ol. 24a-124)' said drawings to be considered merelyas illus?trative and not as; restrictive, I0 is a shaft on which are mountedseveral discs `or pairs of discs II, said discs preferably being of woodas shown. Usually three discs or pairs of discs are employed, 5 one ator near the center of the barrel and the other two near the endsthereof. By means of wood screws I2 'said discs are secured to theflanged collar Iland the latter is rigidly connected io the shaft in anysuitable manner as, -10 for example, by set screws of which one is shownat I4. The barrelstaves I5 are secured to the discs by means of screwsI6 or in any other suitable manner which will provide a rigidconstruction.

If screws are employed, each is preferably in---l scrted through acounterbore which is then closed y by a wooden plug I1, thus preservingthe smooth surface of the barrel. Rods I8 pass throughlongitudinally-extending grooves in some or allv of the staves and alsothrough the heads I9, saidrods being held from endwise movement andbeingv properly tensioned by the nuts 20 threaded to4 the ends of saidrods and 'taking against the washers 2l disposed i/n recesses cut in theouter face of the head. .f 25

Preferably the heads are of 'unitary or onepiece construction comprisingthree layers of wood secured togetherl in the manner set forth in saidLetters Patent 1,239,744, although it will be understood that thepresent invention is ap- 30 plcable to heads of any other construction.Y

Mounted on /the shaft and extending through each head is a anged sleeveor-hub 22 to which, by meansof machine screws 23, or other suitablemeans, the heads are rigidly secured. By inter- 35 posing the hubsbetween the shaft and heads, a much' larger bearing surface for theheads is obtained than `if the latter were mounted directly on theshaft. This is advantageous in that it prevents enlargement or'distortion of the central hole in the head which sometimes results whenaheavy loaded beam which is mounted directly on the shaft comes forciblyin contact with a solid surface, as when such beam is dropped on acement floor. The hub 22 serves also to maintain the concentricity ofthe barrel and the heads and isiI instrumental in transferring theweight of the yarn Wound on the barrel to the center of the heads andthence to the oor or other support on which the beam is placed, therebyrelieving strain on the shaft.

As indicated in Fig. 2 each stave has a longitudinally-extending groove24 milled in one of its side faces for receiving a rod and the otherside face thereof is provided with a groove 25 for receiving the tongue26 formed on the face of the next adjacent stave. In Fig. 2 which showsten staves although the number is not material, the grooves of everyother stave is provided with a rod I8, although it will be understood ofcourse that my invention is not limited to this relation between thenumber of rods and staves.

By means ofthe construction shown in Fig. 1 it is possible to dispensewith the nuts heretofore employed for holding the heads against thebarrel without any risk of relative movement between the heads and thebarrel due to sudden changes in the speed of the revolving beam.

Referring to Fig. 3 the flanged sleeve or hub 22 does not pass throughthe head but is cut oi flush with the outer face thereof and the ends ofthe shaft are threaded to receive the stiifeners 21 shown in the presentinstance as concave discs, preferably of resilient material, forexample, hot rolled steel. Each disc is arranged with its convex surfaceoutward with respect to the adjacent head and is substantially larger indiameter than the barrel. For example, if the barrel is lll in diameter,the stiiener discsmay be from I3" to l Sin diameter. By means of aspanner wrench taking into the holes 28, each' disc may be turned upagainst the head with the necessary force to prevent the spreading ofthe outer peripheral portions of the latter and is held in adjustedposition by the lock-nuts 29, said nuts 29 also serving as spacers whenthe beam is put on its own trunnions.

Having thus described illustrative embodiments of my invention withouthowever Hunting the same thereto, what I claim and desire to secure byLetters Patent is:

1. A section beam comprising a shaft, discs mounted on said shaft,staves spaced around said discs and forming a barrel, each of saidstaves being provided with a longitudinally-extending groove, a pair ofheads mounted on said shaft, a plurality of rods each disposed in one ofsaid grooves and passing through said heads, and means co-operating withsaid rods for drawing said heads against the ends of said barrel.

2. A section beam comprising a shaft, discs mounted on said shaft,staves spaced around said discs and forming a barrel, each of saidstaves having a longitudinally-extending groove in one of its sidefaces, a pair of heads mounted von said shaft, a plurality of rods eachdisposed in one of said grooves and passing through said heads and meansco-operating with said rods for drawing said heads against the ends ofsaid barrel.

3. A section beam comprising a shaft, discs mounted on said shaft,staves spaced around said discs and forming a barrel, one of the sidefaces of each of said staves being provided with alongitudinally-extending rod-receiving groove and alongitudinally-extending tongue, and the other side face of each of saidstaves having a longitudinally-extending tongue-receiving groove, a pairof heads mounted on said shaft, a plurality of rods eachdisposed in oneof said rod-receiving grooves and passing through said heads, and meansco-operating with said rods for drawing said heads against the end ofsaid barrel.

4. A section beam comprising a shaft, a barrel and a pair of headsmounted on said shaft, a pair of discs each engaging the outer face ofone of said heads and being independent of and sepa rable from thelatter and in threaded engagement with said shaft, each said disc beingconvex outwardly with respect to the head adjacent thereto and eachbeing substantially larger in diameter than said barrel and means forlocking each said disc against axial movement with respect to saidshaft, whereby said heads are prevented from spreading when the beam isfilled with yam..

5. A section beam comprising a barrel, a shaft passing through the same,and a pair of heads mounted on said shaft, the ends of said shaftextending beyond said heads, a pair of discs each engaging the outerface of one of said heads and being independent of and separable fromthe latter, each said disc being convex-'outwardly with respect to thehead adjacent thereto and .each being substantially larger in diameterthan said barrel and means for locking each said disc against axialmovement with respect to said shaft, -whereby said heads are preventedfrom spreading when the beam is filled with yarn.

RAY UDELL THORNTON.

